JavaScript Deep Dive: Building Scalable and Secure Microservices with Node.js` is a series of four posts by Akamai Senior Software Engineer Maciej Treder, covering the basics of building microservices on Node.js, securing them with two-factor authentication, sharing data between services with a cloud-based persistence layer, and protecting them with JSON Web Tokens and Twilio Authy. The posts aim to provide an extensive education on building scalable and secure microservices with JavaScript and Node.js. Maciej Treder is also the author of @ng-toolkit and has written numerous posts for the Twilio blog on JavaScript and Angular development and security.